<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<script type="text/javascript">
    // function sum(a, b, c) {
    //     return a + b + c
    // }
    //
    // const result = sum(1, 2, 3)
    // console.log(result)

    function sum(a) {
        return (b) => {
            return (c) => {
                return a + b + c
            }
        }
    }

    const result = sum(1)(2)(3)
    console.log(result)
</script>
</body>
</html>